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Finding the Fourth Proportional to 466,327.90, 699,491.85 and 429,586.30

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Solution

The fourth proportional to 466,327.90, 699,491.85 and 429,586.30 is: 644,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,327.90 : 699,491.85 = 429,586.30 : x
  2. Step 2: Convert to fraction form
    466,327.90/699,491.85 = 429,586.30/x
  3. Step 3: Cross multiply
    466,327.90x = 699,491.85 × 429,586.30
  4. Step 4: Simplify right side
    466,327.90x = 300,492,115,721.66
  5. Step 5: Solve for x
    x = 300,492,115,721.66/466,327.90
  6. Step 6: Final answer
    x = 644,379.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.